They're going to have to start hacking off limbs to up the ante.

Well, if it was a Bollywood movie, I'd say Maa was about due for the chop. They can keep doing what they did with the little kid: introduce a cute munchkin/lady/old person, and then kill them off after making hero(es) care for him/her.

They're above such paltry matters as the human body's non-bouncy nature.

Some people on soompi were speculating that he fell in the water and thus survived, but we all know...does it really matter? He is a kdrama hero, laws of physics do not apply to him.